EPR-68 Datasheet, PDF (13/28 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP 68 - 6.6 W DC-DC Flyback Converter Using DPA-Switch- (DPA423G)

19-Jul-2005
EP68 3.3 V, 2 A DC-DC Power Supply
9 Performance Data
All measurements were taken at room temperature utilizing a DC input source and
dynamic DC loads. Input and output voltages and output current were measured with
dedicated DVMs.
9.1 Efficiency
Efficiency Vs. Output Load
80%
79%
78%
77%
VIN=36 VDC
76%
VIN=48 VDC
75%
VIN=57 VDC
74%
73%
72%
71%
70%
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Load Current (A)
Figure 7 - Efficiency vs Output Load, Room Temperature.
Page 13 of 28
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